Amendments to line of credit agreements fees percent.

No definition available.

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- Definition

Debt Instrument, Holdback Agreement, Additional Funding Amount

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Debt Instrument, Holdback Agreement, Revised Additional Funding Amount

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Debt Instrument, Incremental Funding, Remaining Balance

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Maximum liability under amended bond agreement.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	num:percentItemType
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- Details

Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Average amount borrowed under the credit facility during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityAverageOutstandingAmount
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum amount borrowed under the credit facility at any time during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

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-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

+ Details

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Data Type:	num:percentItemType
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Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Subparagraph 2, 3

-Article 9

+ Details

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Balance Type:	credit
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- Definition

Weighted average interest rate of short-term debt outstanding.

+ References

+ Details

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- Details

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Short-term Borrowing and Long-term Debt - Additional Information (Detail) (USD $)	3 Months Ended	0 Months Ended
	May 02, 2015	May 30, 2014	Jun. 28, 2013	Jan. 31, 2015	Jul. 18, 2013	Aug. 18, 2014
Debt Instrument [Line Items]
Credit facility, maximum principal amount	$ 150,000,000.0
Credit facility, maximum borrowing capacity increased	200,000,000.0
Maximum amount available under credit facility	124,200,000
Maximum outstanding borrowing	40,000,000
Average outstanding borrowing	29,000,000
Loan classified as short term	32,740,000us-gaap_LongTermDebtCurrent			10,483,000us-gaap_LongTermDebtCurrent
Bonds [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding	3,700,000			3,700,000
Interest rate on bonds	1.25%			1.25%
Affiliated Entity [Member]
Debt Instrument [Line Items]
Subsidiaries maximum bond liability	5,880,000
PGP Florence, LLC [Member] \| Protective Life Insurance Company [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding					12,600,000
Fixed interest rate of loan					4.00%
Outstanding loan amount	11,900,000
Loan classified as short term	500,000
PGP Gardendale, LLC [Member] \| Protective Life Insurance Company [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding		17,300,000
Fixed interest rate of loan	5.00%
Outstanding loan amount	5,000,000
Loan classified as short term	100,000
Proceeds from the issuance of long-term debt		5,000,000
Holdback agreement revised additional funding amount	10,000,000
Incremental funding, remaining balance	10,000,000
PGP Fayetteville, LLC [Member] \| Protective Life Insurance Company [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding						3,200,000
Fixed interest rate of loan						4.625%
Outstanding loan amount	3,100,000
Loan classified as short term	200,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility restated commitment fee amount			0.25%
Weighted average of short term debt	1.65%
Fair value measurements outstanding under revolving line of credit	32,000,000			9,800,000
Revolving Credit Facility [Member] \| Minimum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Line of credit facilities interest at variable rate			1.50%
Revolving Credit Facility [Member] \| Minimum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
Line of credit facilities interest at variable rate			0.50%
Revolving Credit Facility [Member] \| Maximum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Line of credit facilities interest at variable rate			2.00%
Revolving Credit Facility [Member] \| Maximum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
Line of credit facilities interest at variable rate			1.00%
Letter of Credit [Member]
Debt Instrument [Line Items]
Credit facility, maximum principal amount	35,000,000.0
Loan agreement amount outstanding	5,600,000			5,600,000
Letter of Credit [Member] \| Bonds [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding	3,700,000
Swing Line Loans [Member]
Debt Instrument [Line Items]
Credit facility, maximum principal amount	15,000,000.0
Loan Agreement with Protective Life Insurance [Member] \| PGP Gardendale, LLC [Member] \| Protective Life Insurance Company [Member]
Debt Instrument [Line Items]
Holdback agreement additional funding amount		$ 12,300,000